Intebnal-combustion engine



July 3, 1923.

F. S. WAHL INTERNAL COMBUS'IION ENGNE Filed March 27, 1920 E @hln veizn' y a r'rvzqqq Patented July 3, 1923.

FRANK S. WAHL, OF NORTH TONAWANDA. NEW YORK.

INTERNAL-COMBUSTION ENGINE.

riginal application tiled November 36, 1917, Serial No. 204,571.

Serial No. 369,412.

Ma rch 27, 1920.

.To alf whom if may concern *lo it known that I, FRANK S. 'AHL, a citizen of thtJ l`nit`ed States. residing; at North 'lonau'untlan in thtl county of E iagura und State ol' New York, have invented new and useful Improvements in Internal-Vombustion Engines, of which the following.;r is a specification.

This invention relates to internal ominition engines and more particularly to an engine which is intended to operate under var riations in atmospheric pressures or condi` tions sut-h :1:5 an uuroplune engine.

The purpose ol' my invention is to provide means whereby a greater volume of gaseoubA mixture is admitted to the Cylinder than the ordinary piston displacement usually affords and to maintain the Compression of thisl mixturi: in the cylinder constant under varying ulmouphuricf t-onllitionb h v means whirh are controlled either manually. thermostatitullv or hurometricully. or hf; a Huitahiv combinaition of Such rfontrollingv nuuuez. Such. u proviniou is particularly' suitable for aeroplane unginosinasninch engines for this servit-e inni-1t trawl in and utilize the atmosphere not only at sea level hut also thousands of feet higher where the density of the air much lower which renders the engins: romm'ussion variable at different levels and therefore yirflds rariahlc power. .An engine? utilizingr u fixed piston diSphn'onn-nt in ini'zxpuhle of so' illing the rylinder as to rompensutv for the Varying densities of the atmosphere. By handling u groiitor volunu ol th(- gns'fuiu "e than the normal pinton diei-plane nient. contemplated in tho presont inwotion. togethvr with the rtfgulator for :uljust` ing the fuel intake to'eomponsute for rari-.1 tion in utmospherio conditions it iuvposshle to maintain the compression of the niixture count-dnt 1' A' This applimation :1 cliviaion of :ih applit'ution file .tl hv myself oveinhor ill); 1917, Serial No; 2134.571 and putented April 27, 19230. No. l, tls'.

In tho accompanying drawings:

Figure l is a vertical section of oruyform of internal combustion engin@ embodying: my invention. Figure E2 is a vertirulvset'- tion showing a modfirationlof my invention.

Similar characters of reference indi ate corresponding parts in both views. il

Referring to Figrl, 1 represents the ihollow bastx or frame of the gas or internal combustion engine which may be operatod Divided and this application led hy any exploivc inwliunl sut-h us gan, gasolinlor lurosoni. d'itliin this hust' is ulrungrd :1 nuiin or drivn-r Shaft 2 which in this instaure in arranged horizontally and journuled in liv-.trillionA il. on the bottom of this buse. or in :my othvr Asuitable manner. Between its huur-ings this shrill is provided with u ventral vrunli l whirh projcrts from one y-idu oil the center of the suino und two sido trnnks 5. 5. whith projert luterull) from the axis of the `@halt dianutrically opposite to the lt-ntl'ul vrunll. this. litt-mentioned Crunk heing arrungud lniduu),- between the two side cranks.

t3 reprvnontsn an upright tuhuhlr ,guide whit-h is inountod ut its low-r end on the upper part ol' the engine huso or l'l'unu und 7 un upzight pump o vlindvr urrrfingud ahme thi tuhulur guidil und :mL-ill)v in liml there with und haring un intvrnul hor-v lurgl'r than the horn oi' thc tuludur guido. .\l|out iniduuy of ita4 lic-ight thi 4 tuhulul' guide is proridt-d with un vxhuust pusmlgv or umnifoid h whit-h i@ prvi'vruhlv of unnulur forni und opens inuardliv to tluhol'foi' thin` guido und is provided with un outlvt 5| on it outtr sido. livrehy tlul produl-th4 of vonihuslion muy hf diSrhzu'ged to thtI utniosphero or ronflufstt-d to any other suiluhh' plano. For thil uirplyfu: of voolin;r tluI engine, tho tuhulul' ,guido und tht: pump nvlindrr uro providod with :in rui-lohn;r shvll lll whirh forms u jan-kut ll tluuelutu't-ou through uhivh wutel or otlur t-oolin'rg nudiunl is f'iil'uluttd in .1 niunnur inlilur to thut coimuonl)l prut-lived in rnginvs :n` nonl gvnll'ulllv uulnulm-lured. l 1' ;1rt'.--t-nts :l tuhuhxr ovlindrivzll nunilwr whil'h lwiprovute.` lrnglhu'imf within the tubular guido und torno pui-t of tini moans xvhoiohy thi* gustous furl or roxnhuhtihle Inixturi for oporutiug thi origini is drawn into tho vnginv unil honiprossod therein :1nd :lino purl of ilul nuuns u'lurohy thtl power to the vxploding niixturv transmitted to the orunk yhuit At its lower end this tubu` lm' memhen iS arranged within the buse und connetted on diunletlirally oiposite sides h v :nouns of two oonnwtinfl rm s 13 with the side r'ranlis ol' tho nuiin shaft. At its upper end this tubular member is connected with a plunger or piston l-l which reciprocutes vertically Within th@ pump cylinder or barrel und forum part of the mixture pumping` and compressing merhunsm. The lower end of the tubular nuniher 12 is open and its upper end is pzovitlml with means for feedmi; :winnie:-

iff Ein? i .nm pilinlai ai *im irnig giislnin unich vimini' iv!- Hizif'fii il:

`inaiznifiiA will, di

fnr ihr machine. In ii* g mme which is Y my" iii iizii sin tup if the pump wnifinlw and ujn-ning; at is lower mi inni :iw initier wiiiiis iigfpvr ein! is iinrie'iw? nii'. :i i" '7L' wirr TS Ahiih per nib' zii' iii vrrzipv from Hair; remi ai" this cylinder mit prmvns entrain@ oi' tim saine, and il wnrrfiing lienri 75% :irrnngzuli in the Contrniiing ryiniiei and iiinaeiell with the npprr @nd @if ine wlw rmi uring the i twine nf ihn 'iring ryiindcr the i ib iu'ii Sint 'by iin? gaseous in which is being rnrnpressed ai im tw lip'iizsri 'pnliiug Giect nf the iimiiing nKV un TQ :an tiw trr in its dein Ihre i-Qntrni'ling cylinder produces a pznria mciinni in die. upper und (if this eryiindvm thraconibined fori-vs iing greatei than the tfinSinn of the Spring The :isrvnt of rhs cnntruiling piston is unparaiiri-y frei inzianinffh as the check valve 78 in, thi` iiinrnpunr; und permits in@ rscupe :if in@ an' fir-mn ffii@ upper und 0f fha conrwiiiim fl'.'iniivr which vnnlihs iw expand ing iur-nin); gauw in ih@ firing ryinder to MUM thv :min intukrf raive 2l Shuty during thv npwzxrf srnlie of the firing cyiinder. Winni. hmiiwr. ihr Exhaust ports of the firing` jriininr are nncricd by the firing pisini hiring iiw iwi parli nf he firing or exifnwinn slrnke of hm@ irirlniirexfl anni the iii-wiwi@ within the firing c-ji'iinder drops, elli. tu iiw @swipe f' the spent ganas, then 2in] niilisnz'u f'i the spring 25 together with iw Einw-nre; mi tin? Cmnprrssed rvrimrge of in Uw iimiir nml nf *die pump cyinder wus iliiumili valw E21 :mii this gas rushes uw lin liring v irinzelr eind fills 2hr- Szmin as 1 Laie zit is gsm gies hfrL-frUnL Uil iinmirr giur-1.0i' the pump fyiinder, iin: Ninn i" irurisisfi with iw() flliisupply f-grinmi Si; and 2550 ni' d funi Supply ronduit iii' @nw-:iA i hic-ii winniinniraw with .f1 Car- ==seiii-r nr may other smits-f3 if supply from unifi; hv vxpinsire mixture i5 drawn and iii-i vii-wij' #refining Zii. 3T une if 'which 36 iig inw Hiv izmir-r cnil nf the pump cylinfv; inf? tln une 3T mening h v :i lower lirmiih gmmigu inw tbs lower end of liia ryinivr :mii by an upper branch aS- fmga uzjanr 31'* iritn ibis ulvlindvr :ii a p ace iwi n m-n it? uliwr and nwcr ends. Between Hw snppr ronduit suction 35 :ind the de- ?iwry ronduit sertion 36 is arranged nn inii'm-iy fming mire Sent 390 and between Hw flnifiijf @mulini Sviiimi 350 an (19 dei swr n hii safer-tiem 3T is arranged fin in- 'miriiiy hiring rzzire Seat 4U. 4L 1-2 rt? rement tm imriirdiy-Opening puppet' va ves w'iivh uw :idaptrfii in engage with the valve smit ML l'vi?. rsszpffiiveiy, and are guided in invii fnnrrinnns b v means of upri ht .nlw :www: i3. 44. projecting downwar 1y,

lim

perforations 84 in the top of the chamber 88. 89 represents a ehifti rod guided in -the upper part of the elle and 90 n s ring surrounding this rod and inter between the to of the shell and the 'aphra so as to yie dingly hold the latter in a e ressed position` 91 represents a regulating lever pivoted et one end to the upper end of the diaphragm rod. To the central part of this lever is connected a spring 92 which is in turn connected with t e lower end of the valve rod 44 of the check valve '42 arranged in the fuel eupply conduit 35 of the engine.

96 represents a pipe or conduit forming art of the system whereby water is circuiitted around various heated parts of the engine for the purpose of coolin the same.` In this water conduit is arrange a thermostatic rod or element 97 which is adapted to expand and contract in response to a rise and fall in the tempereture of the water seeing through the circulating conduit. ne end of this thermostatic rod is fixed on the pipe, an shown at 98, end the other is connected with a rock arm 99 arranged with in the'pipe 96 and mounted on a rock shaft 100 journaled in suitable bearings on this pipe. Outside of the latter the rock shaft 100 ie provided with n rock arm 101 which is connected b v e rod 102 with the other end of the lever Bl.

As the temperature of the engine incl-ences, the temperature of the explosive mixture is also An a result the thermostetic elementy 97 in the Water conduit expands and shifter the regulating lever 91 so es to reduce the tension on the spring 92 and permit the check valve 42 to open easier. Any changes in the density of the air will cause the diaphragm 86 to rise or fell and thereby also lessen or increase the tension of the spring 92 and either increese or decrease the`volume of mixture which is permitted to enter the engine.

I claim as my invention: l

1. An internal combustion engine comprising a fuel supply conduit` e movable valve for controlling said conduit, und means for ad'usting the extent of opening of Said vaive, comprisingw. spring connected with said valve, a shell containing two chambers which are separated by a. ilexihle diaphragm which is connected with saidjspring, one chamber being open to the atmosphere and the other closed to the atmosphere, and a thermostatic element responsive to changes in the temperature of the engine and operativel connected with said valve.

2. internal combustion engine comprising a cylinder, .a fuel supply conduit, a cooling system having a water conduit` e valve in said supply conduit, and means for controlling the o ning of said velve. compricing a shell, a exible diaphragm dividing said shell into two compartments one of which is closed and the other opened to the atmosphere, e. guide rod connected with said diaphragm, aA spring connected with said valve` a lever connected with said rod and spring, a thermostatic element arranged in said water conduit and having one end ixed` an inner rock erm connected with the other end of said thermosttirelement, n rock shaft carrying said inner arm and an outer arm connected with scid rock shaft and with said lever.

'FRANK S. WAHL. 

